Celkon A40 vs Karbonn A4

Compare recorded specifications, size and practical differences.

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Key differences

Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

  • Weight

    A4: 51.5 g lighter

    A40:
    126.5 g
    A4:
    75 g
  • Width

    A40: 2 mm narrower

    A40:
    64 mm
    A4:
    66 mm
  • Depth

    A4: 1.3 mm thinner

    A40:
    10.8 mm
    A4:
    9.5 mm
  • Release year

    A40:
    2014
    A4:
    2013

Physical size

Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

  1. 1. A40

    Height:
    126.2 mm
    Width:
    64 mm
    Depth:
    10.8 mm +1.3 mm versus A4
  2. 2. A4

    Height:
    124.8 mm
    Width:
    66 mm +2 mm versus A40
    Depth:
    9.5 mm

Weight

Bars start at zero and share a scale within this chart.

  1. 1. A40

    126.5 g

    +51.5 g versus A4

  2. 2. A4

    75 g

Screen size

Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

  1. 1. A40

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²
  2. 2. A4

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    47.6 cm²

A4 has approximately 4.6% more rectangular screen area than A40.

Memory variants

Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

A40: Original memory entry

4 GB · 512 MB RAM

A4: Original memory entry

256 MB · 512 MB

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. A40

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot)

2. A4

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot)

Battery capacity

Capacity is not battery life. No endurance test is implied.

Recorded battery capacity

Bars start at zero and share a scale within this chart.

  1. 1. A40

    1500 mAh

    +100 mAh versus A4

  2. 2. A4

    1400 mAh

Specifications

Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

1. A402. A4

Everyday essentials
Everyday essentials — specifications for A40, A4.
SpecificationA40A4
Dimensions (HxWxD)
  • 126.2 Х 64 Х 10.8 mm
  • 124.8 Х 66 Х 9.5 mm
Weight
  • 126.5 g
  • 75 g
Technology
  • TFT
  • TFT
Screen size
  • 4" inch
  • 4" inch
Screen resolution
  • 480 x 800 px
  • 320 x 480 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 512 MB RAM
  • 256 MB
  • 512 MB
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Li-Ion
  • 1400 mAh
  • Li-Ion
Operating system OS
  • Android 4.2.2 (Jelly Bean)
  • Android 2.3.6 (Gingerbread)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A40, A4.
SpecificationA40A4
Touchscreen
  • touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 256K
Screen area
  • 45.5 cm2
  • 47.6 cm2
Screen format
  • 5:3 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 56.4%
  • 57.8%
PPI /points per inch/
  • 233 PPI
  • 144 PPI
Camera and Video
Camera and Video — specifications for A40, A4.
SpecificationA40A4
Rear camera, main
  • 5 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 5 MP
  • 3.15 MP
Video
  • Yes
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • VGA
Unknown
Performance
Performance — specifications for A40, A4.
SpecificationA40A4
Processor CPU
  • Dual-core 1.3 GHz
Unknown
General specs
General specs — specifications for A40, A4.
SpecificationA40A4
Release date
  • 2014
  • January
  • 2013
  • March
Colors
  • White
  • Yellow
  • Blue
  • white/black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 70 EUR
Battery life Unknown
  • Stand by time- Up to 250 h Talking time- Up to 4 h 20 min
Communication and Connectivity
Communication and Connectivity — specifications for A40, A4.
SpecificationA40A4
SIM card
  • Dual SIM
  • Dual SIM (Mini-SIM)
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 - SIM 1 & SIM 2
Speed Unknown
  • HSPA
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • No
USB
  • microUSB 2.0
  • Proprietary
Bluetooth
  • 2.0
  • Yes
Music and Audio
Music and Audio — specifications for A40, A4.
SpecificationA40A4
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for A40, A4.
SpecificationA40A4
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer